linux/include/asm-generic/vmlinux.lds.h, branch v3.14-rc4

kernel: add support for init_array constructors

2013-10-17T04:35:17Z

This adds the .init_array section as yet another section with constructors. This is needed because gcc could add __gcov_init calls to .init_array or .ctors section, depending on gcc (and binutils) version . v2: - reuse mod->ctors for .init_array section for modules, because gcc uses .ctors or .init_array, but not both at the same time v3: - fail to load if that does happen somehow. Signed-off-by: Frantisek Hrbata Signed-off-by: Rusty Russell

tracing: Add __tracepoint_string() to export string pointers

2013-07-26T17:39:44Z

There are several tracepoints (mostly in RCU), that reference a string pointer and uses the print format of "%s" to display the string that exists in the kernel, instead of copying the actual string to the ring buffer (saves time and ring buffer space). But this has an issue with userspace tools that read the binary buffers that has the address of the string but has no access to what the string itself is. The end result is just output that looks like: rcu_dyntick: ffffffff818adeaa 1 0 rcu_dyntick: ffffffff818adeb5 0 140000000000000 rcu_dyntick: ffffffff818adeb5 0 140000000000000 rcu_utilization: ffffffff8184333b rcu_utilization: ffffffff8184333b The above is pretty useless when read by the userspace tools. Ideally we would want something that looks like this: rcu_dyntick: Start 1 0 rcu_dyntick: End 0 140000000000000 rcu_dyntick: Start 140000000000000 0 rcu_callback: rcu_preempt rhp=0xffff880037aff710 func=put_cred_rcu 0/4 rcu_callback: rcu_preempt rhp=0xffff880078961980 func=file_free_rcu 0/5 rcu_dyntick: End 0 1 The trace_printk() which also only stores the address of the string format instead of recording the string into the buffer itself, exports the mapping of kernel addresses to format strings via the printk_format file in the debugfs tracing directory. The tracepoint strings can use this same method and output the format to the same file and the userspace tools will be able to decipher the address without any modification. The tracepoint strings need its own section to save the strings because the trace_printk section will cause the trace_printk() buffers to be allocated if anything exists within the section. trace_printk() is only used for debugging and should never exist in the kernel, we can not use the trace_printk sections. Add a new tracepoint_str section that will also be examined by the output of the printk_format file. Cc: Paul E. McKenney Signed-off-by: Steven Rostedt

Merge branch 'cpuinit-delete' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2013-07-07T18:01:19Z

Pull first stage of __cpuinit removal from Paul Gortmaker: "The two commits here 1) dummy out all the __cpuinit macros so that we no longer generate such sections, and then 2) remove all the section processing that we used to do for those sections. This makes all the __cpuinit and friends no-ops, so that we can remove the use cases of it at our leisure. Expect stage 2, which does the tree wide removal sweep at the end of the merge window." * 'cpuinit-delete' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: modpost: remove all traces of cpuinit/cpuexit sections init.h: remove __cpuinit sections from the kernel

rapidio: convert switch drivers to modules

2013-07-03T23:08:04Z

Rework RapidIO switch drivers to add an option to build them as loadable kernel modules. This patch removes RapidIO-specific vmlinux section and converts switch drivers to be compatible with LDM driver registration method. To simplify registration of device-specific callback routines this patch introduces rio_switch_ops data structure. The sw_sysfs() callback is removed from the list of device-specific operations because under the new structure its functions can be handled by switch driver's probe() and remove() routines. If a specific switch device driver is not loaded the RapidIO subsystem core will use default standard-based operations to configure a switch. Because the current implementation of RapidIO enumeration/discovery method relies on availability of device-specific operations for error management, switch device drivers must be loaded before the RapidIO enumeration/discovery starts. This patch also moves several common routines from enumeration/discovery module into the RapidIO core code to make switch-specific operations accessible to all components of RapidIO subsystem. Signed-off-by: Alexandre Bounine Cc: Matt Porter Cc: Li Yang Cc: Kumar Gala Cc: Andre van Herk Cc: Micha Nelissen Cc: Stef van Os Cc: Jean Delvare Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

modpost: remove all traces of cpuinit/cpuexit sections

2013-06-26T16:17:06Z

Delete all audit rules that were checking how the .cpuXYZ related sections were inter-operating with other __init like sections, now that __cpuinit is gone. Update the linker script to not have any knowledge of .cpuinit sections. [lds.h update courtesy of Ralf Baechle ] Cc: Arnd Bergmann Cc: Rusty Russell Signed-off-by: Paul Gortmaker

Finally eradicate CONFIG_HOTPLUG

2013-06-03T21:20:18Z

Ever since commit 45f035ab9b8f ("CONFIG_HOTPLUG should be always on"), it has been basically impossible to build a kernel with CONFIG_HOTPLUG turned off. Remove all the remaining references to it. Cc: Russell King Cc: Doug Thompson Cc: Bjorn Helgaas Cc: Steven Whitehouse Cc: Arnd Bergmann Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: Andrew Morton Signed-off-by: Stephen Rothwell Acked-by: Mauro Carvalho Chehab Acked-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman

CONFIG_SYMBOL_PREFIX: cleanup.

2013-03-15T04:39:43Z

We have CONFIG_SYMBOL_PREFIX, which three archs define to the string "_". But Al Viro broke this in "consolidate cond_syscall and SYSCALL_ALIAS declarations" (in linux-next), and he's not the first to do so. Using CONFIG_SYMBOL_PREFIX is awkward, since we usually just want to prefix it so something. So various places define helpers which are defined to nothing if CONFIG_SYMBOL_PREFIX isn't set: 1) include/asm-generic/unistd.h defines __SYMBOL_PREFIX. 2) include/asm-generic/vmlinux.lds.h defines VMLINUX_SYMBOL(sym) 3) include/linux/export.h defines MODULE_SYMBOL_PREFIX. 4) include/linux/kernel.h defines SYMBOL_PREFIX (which differs from #7) 5) kernel/modsign_certificate.S defines ASM_SYMBOL(sym) 6) scripts/modpost.c defines MODULE_SYMBOL_PREFIX 7) scripts/Makefile.lib defines SYMBOL_PREFIX on the commandline if CONFIG_SYMBOL_PREFIX is set, so that we have a non-string version for pasting. (arch/h8300/include/asm/linkage.h defines SYMBOL_NAME(), too). Let's solve this properly: 1) No more generic prefix, just CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX. 2) Make linux/export.h usable from asm. 3) Define VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR(). 4) Make everyone use them. Signed-off-by: Rusty Russell Reviewed-by: James Hogan Tested-by: James Hogan (metag)

Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2013-02-21T22:58:40Z

Pull ARM SoC cleanups from Arnd Bergmann: "A large number of cleanups, all over the platforms. This is dominated largely by the Samsung platforms (s3c, s5p, exynos) and a few of the others moving code out of arch/arm into more appropriate subsystems. The clocksource and irqchip drivers are now abstracted to the point where platforms that are already cleaned up do not need to even specify the driver they use, it can all get configured from the device tree as we do for normal device drivers. The clocksource changes basically touch every single platform in the process. We further clean up the use of platform specific header files here, with the goal of turning more of the platforms over to being "multiplatform" enabled, which implies that they cannot expose their headers to architecture independent code any more. It is expected that no functional changes are part of the cleanup. The overall reduction in total code lines is mostly the result of removing broken and obsolete code." * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) ARM: mvebu: correct gated clock documentation ARM: kirkwood: add missing include for nsa310 ARM: exynos: move exynos4210-combiner to drivers/irqchip mfd: db8500-prcmu: update resource passing drivers/db8500-cpufreq: delete dangling include ARM: at91: remove NEOCORE 926 board sunxi: Cleanup the reset code and add meaningful registers defines ARM: S3C24XX: header mach/regs-mem.h local ARM: S3C24XX: header mach/regs-power.h local ARM: S3C24XX: header mach/regs-s3c2412-mem.h local ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/ ARM: S3C24XX: transform s3c2443 subirqs into new structure ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs ARM: S3C24XX: move s3c2443 irq code to irq.c ARM: S3C24XX: transform s3c2416 irqs into new structure ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs ARM: S3C24XX: move s3c2416 irq init to common irq code ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property ARM: S3C24XX: Move irq syscore-ops to irq-pm clocksource: always define CLOCKSOURCE_OF_DECLARE ...

clk: add common of_clk_init() function

2013-01-24T19:09:28Z

Modify of_clk_init function so that it will determine which driver to initialize based on device tree instead of each driver registering to it. Based on a similar patch for drivers/irqchip by Thomas Petazzoni and drivers/clocksource by Stephen Warren. Signed-off-by: Prashant Gaikwad Tested-by: Tony Prisk Tested-by: Pawel Moll Tested-by: Rob Herring Tested-by: Josh Cartwright Reviewed-by: Josh Cartwright Acked-by: Maxime Ripard Signed-off-by: Mike Turquette [mturquette@linaro.org: merge conflict from missing CLKSRC_OF_TABLES()] Signed-off-by: Mike Turquette

Merge tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux into next/cleanup

2013-01-15T03:55:03Z

From Rob Herring: Initial irqchip init infrastructure and GIC and VIC clean-ups This creates irqchip initialization infrastructure from Thomas Petazzoni. The VIC and GIC irqchip code is moved to drivers/irqchips and adapted to use the new infrastructure. All DT enabled platforms using GIC and VIC are converted over to use the new irqchip_init. * tag 'gic-vic-to-irqchip' of git://sources.calxeda.com/kernel/linux: irqchip: Move ARM vic.h to include/linux/irqchip/arm-vic.h ARM: picoxcell: use common irqchip_init function ARM: spear: use common irqchip_init function irqchip: Move ARM VIC to drivers/irqchip ARM: samsung: remove unused tick.h ARM: remove unneeded vic.h includes ARM: remove mach .handle_irq for VIC users ARM: VIC: set handle_arch_irq in VIC initialization ARM: VIC: shrink down vic.h irqchip: Move ARM gic.h to include/linux/irqchip/arm-gic.h ARM: use common irqchip_init for GIC init irqchip: Move ARM GIC to drivers/irqchip ARM: remove mach .handle_irq for GIC users ARM: GIC: set handle_arch_irq in GIC initialization ARM: GIC: remove direct use of gic_raise_softirq ARM: GIC: remove assembly ifdefs from gic.h ARM: mach-ux500: use SGI0 to wake up the other core arm: add set_handle_irq() to register the parent IRQ controller handler function irqchip: add basic infrastructure irqchip: add to the directories part of the IRQ subsystem in MAINTAINERS Fixed up massive merge conflicts with the timer cleanup due to adjacent changes: Signed-off-by: Olof Johansson Conflicts: arch/arm/mach-bcm/board_bcm.c arch/arm/mach-cns3xxx/cns3420vb.c arch/arm/mach-ep93xx/adssphere.c arch/arm/mach-ep93xx/edb93xx.c arch/arm/mach-ep93xx/gesbc9312.c arch/arm/mach-ep93xx/micro9.c arch/arm/mach-ep93xx/simone.c arch/arm/mach-ep93xx/snappercl15.c arch/arm/mach-ep93xx/ts72xx.c arch/arm/mach-ep93xx/vision_ep9307.c arch/arm/mach-highbank/highbank.c arch/arm/mach-imx/mach-imx6q.c arch/arm/mach-msm/board-dt-8960.c arch/arm/mach-netx/nxdb500.c arch/arm/mach-netx/nxdkn.c arch/arm/mach-netx/nxeb500hmi.c arch/arm/mach-nomadik/board-nhk8815.c arch/arm/mach-picoxcell/common.c arch/arm/mach-realview/realview_eb.c arch/arm/mach-realview/realview_pb1176.c arch/arm/mach-realview/realview_pb11mp.c arch/arm/mach-realview/realview_pba8.c arch/arm/mach-realview/realview_pbx.c arch/arm/mach-socfpga/socfpga.c arch/arm/mach-spear13xx/spear1310.c arch/arm/mach-spear13xx/spear1340.c arch/arm/mach-spear13xx/spear13xx.c arch/arm/mach-spear3xx/spear300.c arch/arm/mach-spear3xx/spear310.c arch/arm/mach-spear3xx/spear320.c arch/arm/mach-spear3xx/spear3xx.c arch/arm/mach-spear6xx/spear6xx.c arch/arm/mach-tegra/board-dt-tegra20.c arch/arm/mach-tegra/board-dt-tegra30.c arch/arm/mach-u300/core.c arch/arm/mach-ux500/board-mop500.c arch/arm/mach-ux500/cpu-db8500.c arch/arm/mach-versatile/versatile_ab.c arch/arm/mach-versatile/versatile_dt.c arch/arm/mach-versatile/versatile_pb.c arch/arm/mach-vexpress/v2m.c include/asm-generic/vmlinux.lds.h